Effects of soil amendments on yield and uptake of heavy metals by berseem grown on sewage water irrigated soil Tathe A.S.1*, Kolape S.S.1 Department of Soil Science & Agril. Chemistry, MPKV, Rahuri 1Assistant Professor (SSAC), College of Agriculture, Karad, Dist.-Satara, MaharashtraIndia *Email: archana.tathe@gmail.com
Online Published on 29 January, 2022. Abstract The pot culture experiment for two consecutive years was conducted at Department of Soil Science and Agril. Chemistry, MPKV, Rahuri to study the influence of various soil amendments on yield and uptake of heavy metals viz. Cd, Cr, Ni and Pb in berseem fodder crop. The pots were filled with soil irrigated with sewage water for more than thirty five years. The soil was treated with different amendments viz. FYM, gypsum, fly ash and their combinations. All the pots were supplied with recommended dose of chemical fertilizers by maintaining five plants per pot. The experiment was laid out in CRD with eight treatments and three replications. Initial soil properties were pHe 8.38, ECe 4.1 dSm−1, organic carbon 7.6 g kg−1, calcium carbonate 83.8 g kg−1, heavy metals viz. Cd, Cr, Ni and Pb were 0.35, 2.60, 2.23, 10.34 mg kg−1, respectively. Total four cuttings of berseem in each year were taken as green fodder yield and analyzed for uptake of heavy metals. Two years pooled mean showed that, there was significant effect of different soil amendments on grren fodder yield of berseem and also decreasing concentration of cadmium, nickel and lead as compared to control. Pooled mean of both years showed that the combined application of FYM + gypsum + fly ash each @ 10 g kg−1 soil (T8) registered significantly increased green fodder yield and lower uptake of Cd, Ni and Pb in berseem as compared to rest of the treatments, but found at par with treatment (T5) application of FYM + gypsum each @ 10 g kg−1 soil. The reduction in uptake of these heavy metals were higher in treatments where FYM was applied either alone or in combination with other amendments followed by gypsum and fly ash. Top Keywords Sewage water irrigated soil, Soil amendments, Berseem, Uptake of heavy metals, Fly ash. Top |